GB/T 41690-2022 English PDF

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GB/T 41690-2022: Quantitative test method for foreign fiber in raw cotton - Manual method
Status: Valid

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Basic data

Standard ID: GB/T 41690-2022 (GB/T41690-2022)
Description (Translated English): Quantitative test method for foreign fiber in raw cotton - Manual method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: B32
Classification of International Standard: 59.060.10
Word Count Estimation: 10,125
Date of Issue: 2022-10-14
Date of Implementation: 2023-05-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 41690-2022: Quantitative test method for foreign fiber in raw cotton - Manual method

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Quantitative test method for foreign fiber in raw cotton -- Manual method ICS 59.060.10 CCSB32 National Standards of People's Republic of China Quantitative test method for foreign fibers in raw cotton Manual method Published on 2022-10-12 2023-05-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed and managed by the National Fiber Standardization Technical Committee (SAC/TC513). This document is drafted by. Jiangyin Fiber Inspection Institute, Changzhou Food and Drug Fiber Quality Supervision and Inspection Center, Jiangsu Fiber Inspection Bureau, Aksu Regional Inspection and Testing Center, Xuzhou Inspection and Testing Center, Lianyungang Fiber Inspection Center, Jiangyin Xiefeng Cotton and Linen Co., Ltd., Jiangsu Huaxing Crimped Oil Co., Ltd. The main drafters of this document. Wang Hongshan, Lu Yongliang, Feng Xiaojian, Jin Yongsheng, Liu Cheng, Ding Shiyong, Xu Aiwu, Wang Xiaohui, Wang Huiping, Xu Yong, You Li, Sang Aichun, Hua Ronghua, Zhang Wei, Yi Feng. Quantitative test method for foreign fibers in raw cotton Manual method

1 Scope

This document describes a test method for the manual determination of the foreign fiber content of raw cotton. This document applies to raw cotton, including sawtooth cotton and cot cotton.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB 1103.1 Cotton Part 1.Sawtooth Processed Fine Staple Cotton GB 1103.2 Cotton Part 2.Top roller processing fine staple cotton GB/T 8170 Numerical Rounding Rules and Representation and Judgment of Limit Values GB/T 32139 Cotton Processing Terms

3 Terms and Definitions

GB/T 32139 and the following terms and definitions apply to this document. 3.1 foreignfiber Non-cotton fibers and non-natural cotton fibers mixed into cotton. Note. Such as chemical fiber, hair, silk, hemp, plastic film, plastic rope, dyeing thread (rope, cloth), etc. [Source. GB/T 32139-2015, 2.1.5, with modifications] 3.2 The ratio of the quality of the foreign fibers picked out in the raw cotton sample to the quality of the sample. Note. The unit of foreign fiber content is grams per ton (g/t). 3.3 The ratio of the quality of the plastic film heterosexual fibers picked out from the raw cotton sample to the quality of the sample. Note. The unit of plastic film foreign fiber content is grams per ton (g/t). 3.4 The quality of other anisotropic fibers (chemical fibers, hair, silk, hemp, plastic rope, dyeing thread (rope, cloth), etc.) ratio of sample mass. Note. The unit of other heterozygous fiber content is grams per ton (g/t). 3.5 numberofforeignfiber The number of foreign fibers picked out from the raw cotton sample. ......

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